Steering-knuckle-bushing remover



June 15 1926. 1,588,687

A. w. RICHTER STEERING KNUCKLE BUSHING REMOVE@ Filed June 16,

W e U '"UPatentefd .lune ,15, 1926.

ALFRED W. RICHTER, QF RGCZ VALLEY, F'

Appncaaoa aies June 1a, 1924. serial No. 'me

' My invention relates to means for removf i `ing the bushings from the steerinfT knuckle of i f-f .l an automotive vehicle, and has .for its object the I )rovidiim` of a pair ot' tools for this purpose, of simple, durable and inexpensive n y construction.

A further object is to provide means for 'removing the bushings, which is positive in action and by which the bushings may be 'removed in a minimum space oit' time.

"i 7A further object is to provide means tor removing the bushings which will not injure fthe interior of the bearing shell or boxing. A still further object is to provide means .by which the bushings may be driven outl by sharp blows, t-he means transmitting the force eqwi-lly to the end of a bushing.

My invention is preferably embodied in a pair of tools, one of them having an expansible head insertable through one oi.t the bushings and engageable with the inner end ot the bushing when expanded, and the other having means for expanding the head and then engaging it for transmitting pressure .thereto for forcing' out the bushing.

1With these and other objects in view, my invention consists in the construction, a-r- ,rangement and Combinationrof the various parts of my device. whereby the objects contemplated are attained as hereinafter more fully sett'orth, pointed out in my claims and illustrated in the accompanying drawings, in which:

Fig. l is a perspective view of the expanding;l tool.

Fig. 2 is a ingl tool. l

' Fig. 3 is a sectional view through a Ford steering knuckle, illustrating the manner of inserting the tools.

e is a similar view illustrating the engaging tool in expanded position and in en gagement With the bushing, preparatory to removal thereof.

I have used the numeral, 10, to indicate generally a steeringr knuckle having the hollow cylindrical shell or boxing, l1, and the upper and lower bushings, l2 and 13, respectively'. The bushings are driven into place under pressure,l y inner surface of the shell, ll. Vfhen the bushings become Worn, considerable pressure is necessary to remove them, and this has been applied in various ways, among them beingl the use of a punch inserted through one bushing and engaging one side of the perspective view of the engag- Ais ot' less diameter and frictionally engage theA One disadvantage ot this method lies in the fact that the pressure is not distributed around the edge ot' the bushing,I so as to be centered thereover, but tends to cause the bushing to bind end of the other bushing.

more than ever. The other disadvantage is that the interior ot' the shell, il, is likely to he damaged so as to hinder the insertion of new luishingrs. In addition, the process takes much time and eliort.

Another method utilizesa tool which is srrewed into the end of a bushing and vthen pulled. )bviously, the pressure thus obtained is not nearly as great as can be 0b*- tained by a sharp blow from a hammer. 'lhe time involved in screwing` and unsorewingr the tool is considerable.'

The engaging tool, A, is designed to engage the inner ond ot a bushing so as to .transmit pressure i round its entire 4circumference, and the tool, B, is insel-table from above through the other bushing so as to transmit the blow of a hammer to the engaging tool,

The tool, A, is made ot1 tool steel, turned down at 14 to form a reduced neck, the head. l5, beingr lett at the end, and the shoulder. 16, thus being formed between the head and neck. The head and neck portion of the tool is hollowed by the central bore, 17, and split h v the intersecting sawv kerfs, 1S, lso as to form a plurality of resilient lingers having at their ends outwardly extending jaws -lor engaging' the end of the bushing,

' he expanding tool is a shaft of Cold l rolled steel, having its end turned down to Iorm the conical beak,

lhthe base of which than the shaft, so as to form the sl'ionlder, 20.

The neck, Muis of such diameter that when. expanded within a bushing to the point where the shoulder, 20, contacts with thei head, 15, it will not bind Within the bushing, but will lit loosely enough so that 'the bushingiill drop readily from the tool when it has been removed from the shell, 11. The shank of the tool, A, is of such diameter as to readily permit the bushing to pass downwardly thereover.

The conical beak, 19, is of such length and taper as to extend substantially to the botjtom of the kerts, 18, When'th'e shoulder, 20, is engaged'against the head, 15, and to be grasped over its entire length by the split portions of thetool, A., with such tenacity -e-'ai'w f'--t .alf anointed iones o strue me or me o hameal equivalents which may that the tool, It, will remain eiing'ing to the tool, l, atteithe hashing has heen removed.

The dian'ieter of the shaft, B, is such as to allow it to pass readily through the-upper hashing.

itt will thus he seen that after .inserting the teeis into engagement with the bushing it is only necessary to dislodge the bushing by striking blons against the end of the tool, B, and the bushing'` Will drop away from en- `gagemeirt with the tool as soon as it has been removed i'rom the spindle housing, ll, lea g the tool in the hands of the operator se that he een quivkly adjust it to position engaging `the next hashing.

it .viil be seen that after the bushing, '13, been removed the shell, l1, may be simplyxinverted and the tools inserted for removing the other hashing Without separating the tools.

Seme changes may be made in the oonstruetion and arrangement of the parts o my. invention Without departingr from the real spirit and pnrposeo my invention, and is my intention to eover by my claims any be reasoniineluded Within their scope. claim as my invention:

le. a devise of the class described to be in removing bushings Jfrom the ends of an iegral journal boxing in which the inner ends of the 'trashing` are spaced Yfrom each other, en engaging tool having a hea er nermal diameter slightly less than the interior diameter of the bushing, and having a reduced neck forming, together with said head, a shoulder, the head and neck being throated, the engaging tool being insertahle used meses? through a bushing to a point Where the head clears the inner end of the bushing, an eX- panding tool insertible through the other bushing' and haring a shank of uniform diameter sli `ghtly less than the diameter of said bushing, whereby it may be passed entirely through said other bushing, said eX- pandiul;Y tool having' a beak receivable Within the Vturented portion of the engaging tool for expanding the head of the engaging tool, said beak being ot such length and diameter relative to the space between the furcations oi the engaging tool as to penetrate substantially to the bottom ot' said space and to he grasped by said fureations'during sub-v stantially its entire length, whereby sai engaging/cool will cling to said expanding tool.

2. In a device dit the class described to be i'ised ivith an integral journal boxing having a removable bushing in either end, space from each other, an engaging tool having a normal maximum diameter slightly less than the interior diameter of one of said bushings, having` a reduced neck 'forming at one end of said tool a head` said head and neck being 'furcateth an expanding tool having a conical bealr'ot greater maximum diameter than the diameter ot the space between said fureations at the extremity of the head, whereby said beaki when inserted between vsaid fureations, will expand the head to an outside diameter greater than the inside diameter of said bushing.

Signed at Rock Valley,

Sioux and State of loiva,

this 3rd day of June, 1924.,

ALFRED WQRICHTER..

in the county of Y 

